VF04 : Reversed Return Delivery appears in VF04

Hi all,

User's Query

The Return Delivery already been reversed; (there is no billing created to it).

The Qn is why the reversed delivery appears in VF04.

I dont know what exactly is VF04. Please explain and guide me what are the parameters can see in that T Code.

and how this T code is related to Delivery Document.

Please do the needful.

Thanks in Advance.